Class Closer

Method Details

• create

  public static Closer create()

  Creates a new Closer.

• register

  public <C extends Closeable> C register(C closeable)

  Registers the given closeable to be closed when this Closer is closed.

  Returns:

  the given closeable

• register

  public <C extends Connection> C register(C connection)

  Registers the given connection to be closed when this Closer is closed.

  Returns:

  the given connection

• register

  public <C extends Statement> C register(C statement)

  Registers the given statement to be closed when this Closer is closed.

  Returns:

  the given statement

• register

  public <C extends ResultSet> C register(C resultSet)

  Registers the given resultSet to be closed when this Closer is closed.

  Returns:

  the given resultSet

• rethrow

  public RuntimeException rethrow(Throwable e) throws IOException

  Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException or Error. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

  This method always throws, and as such should be called as throw closer.rethrow(e); to ensure the compiler knows that it will throw.

  Returns:

  this method does not return; it always throws

  Throws:

  IOException - when the given throwable is an IOException

• rethrow

  public <X extends Exception> RuntimeException rethrow(Throwable e, Class<X> declaredType) throws IOException, X

  Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException, Error or a checked exception of the given type. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

  This method always throws, and as such should be called as throw closer.rethrow(e, ...); to ensure the compiler knows that it will throw.

  Returns:

  this method does not return; it always throws

  Throws:

  IOException - when the given throwable is an IOException

  X - when the given throwable is of the declared type X

• rethrow

  public <X1 extends Exception, X2 extends Exception> RuntimeException rethrow(Throwable e, Class<X1> declaredType1, Class<X2> declaredType2) throws IOException, X1, X2

  Stores the given throwable and rethrows it. It will be rethrown as is if it is an IOException, RuntimeException, Error or a checked exception of either of the given types. Otherwise, it will be rethrown wrapped in a RuntimeException. Note: Be sure to declare all of the checked exception types your try block can throw when calling an overload of this method so as to avoid losing the original exception type.

  This method always throws, and as such should be called as throw closer.rethrow(e, ...); to ensure the compiler knows that it will throw.

  Returns:

  this method does not return; it always throws

  Throws:

  IOException - when the given throwable is an IOException

  X1 - when the given throwable is of the declared type X1

  X2 - when the given throwable is of the declared type X2

• close

  public void close() throws IOException

  Closes all Closeable instances that have been added to this Closer. If an exception was thrown in the try block and passed to one of the exceptionThrown methods, any exceptions thrown when attempting to close a closeable will be suppressed. Otherwise, the first exception to be thrown from an attempt to close a closeable will be thrown and any additional exceptions that are thrown after that will be suppressed.

  Specified by:

  close in interface AutoCloseable

  Specified by:

  close in interface Closeable

  Throws:

  IOException

• closeQuietly

  public void closeQuietly()

  Close quietly.